How to take console input

help
1

Hey its 2022 still taking input in rust seems to be quite difficult,
i mean is their any standard and easy method to take input in any format string, integers.

2

It depends on what you mean by "any" format. If you mean "generically", then the standard library offers both necessary building blocks, using which it is trivial:

use std::error::Error;
use std::str::FromStr;

fn read_stdin<T>() -> Result<T, Box<dyn Error>>
where
    T: FromStr,
    T::Err: Error + 'static,
{
    let mut line = String::new();
    std::io::stdin().read_line(&mut line)?;
    let value = line.parse()?;
    Ok(value)
}

Of course, reading a string is even simpler: you only need the io::stdin().read_line()? call.

1 Like
3

I appreciate your response but this is certainly not trivial, Yes I meant console input

4

What, in particular, is wrong or too complicated about this solution? It only uses std::io::stdin() and FromStr. This is as simple as it gets, as both are needed for a very good and direct reason (stdin for performing the read itself, and FromStr/parse() for converting the string to another type).

5

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